Advanced Analog Integrated Circuit Design

Lecture 1: Introduction

Instructor: Yang (Cindy) Yi

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Outline

• Course Introduction

• Required Materials

• Course Topics

• Grading

• Introduction to Analog Design

• Brief Self Introduction

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Course Introduction

Instructor: Dr. Cindy-Yang Yi

Office: 441 Whittemore Hall

Phone: 540-231-7561 (e-mail preferred)

E-Mail: cindy_yangyi@vt.edu

Office Hours: TBD

Meetings will also be available by appointment (e-mail).

GTA: Mr. Chenyuan Zhao zcyg542@vt.edu

Course Website: http://www.yangyi.ece.vt.edu/Teaching/Adv_analog.html and

https://canvas.vt.edu/

Means of Communication

Your VT email will be the official means of communication for this course.

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Announcements in Canvas

Course Introduction

Prerequisites

Prerequisites: ECE 4220 - Analog Integrated Circuit Design. The material

covered in the Advanced Topics course is of a nature which requires varied

analytical and engineering skills which cannot be associated with any specific

course. A general maturity of the enrolled graduate students in the course is

expected.

Course Objective

• Design, analyze, and optimize analog and mixed signal integrated circuits

(Op Amp and Comparator, A/D and D/A, Voltage References, Integrated

Filter, Phase-locked Loops);

• Simulate and analyze the performance metrics (such as: speed, area,

power and signal integrity) of transistors, interconnects, and circuits;

• Study advanced topics in IC area including neuromorphic electronic circuit

design for brain-inspired computing system, and energy efficient Three

Dimensional (3D) IC design and automation;

• Familiarize CAD tools in the levels of schematic, layout, extraction and

circuit simulation through labs and projects.

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Required Materials

CMOS: Circuit Design, Layout, and Simulation –

Third Edition by J. Baker, Wiley, 2010.

Design of Analog CMOS Integrated Circuits,

by B. Razavi, McGraw-Hill, 2001

Analog Integrated Circuit Design (2nd edition) by

T. Carusone, D. Johns and K. Martin, Wiley,

2011

Paper and Lecture Notes

Cadence Virtuoso Custom IC Design Tools

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Course Topics

• CMOS Technology and Design (Review)

• Physical Structure and Fabrication Process of Integrated

Circuits

• Op Amp and Comparator Design

• Data converters : A/D and D/A

• Voltage References

• Integrated Filter Design

• Phase-locked Loops

• High Speed Circuit Timing Analysis and Design Optimization

• Neuromorphic Electronic Circuit Design for Brain-inspired

Computing System.

• Energy Efficient Three Dimensional (3D) IC Design and

Automation

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Do & Don’t for This Course

• No laptops or Internet appliances can be used during

lectures or exams.

• No late work submission is accepted.

• Regularly being tardy for lectures, reaching late for

lectures, leaving in the middle of lectures, or earlier

from lectures is unacceptable.

• Phones and Class Interruptions: You are not permitted

to use a phone for any purpose during class, and you

must set your phone to be silent before class begins.

• Cheating or plagiarism will result in an automatic “F”

grade in the course (so do your homework and

projects).

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Grading:

Points will be allocated for several different parts of the course.

A letter grade will be assigned based upon the total points

accumulated. The points allocated for different parts of the

course are as listed below:

Exams 30%

Final Project 30%

Homework and Lab Assignments 25%

Pop Up Quizzes 10%

Class Participation 5%

-100%-

Bonus Questions 5 points

Grading policies:

Late homework and lab assignments will not be accepted and

will be assigned a grade of zero.

Examinations:• There will be two examinations. All examinations will be closed

book, closed notes. You are allowed to bring a “cheat sheet”: one A4-sized sheet, one single side.

• NO makeup examinations will be given! If you miss one examination for a reason that has been approved in advance, your total exam score will be the max value of (90% of the highest scores, average of two scores). Missed exams without prior approval will be scored as zeroes.

Homework:• Students may discuss general approaches to solving homework

problems among themselves. The actual solutions that are turned in for grading are expected to be the original work of the individual student. See the section on the Honor Code in this syllabus.

• Homework will be submitted during classes unless specified otherwise. All information that is turned in for grading should be neat, clearly organized, and legible. Work that can not be easily read (in the opinion of instructor or GTA) will receive no credit.

• You are required to STAPLE your assignments

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Pop Up Quizzes:

• Short, unannounced, in-class quizzes will be given.

• The quizzes will be on material covered recently in lecture or

reading assignments. Quizzes will be open book and notes.

• Make-up quizzes will only be given to the students who send me

emails about their class absence notice ahead of the quiz time.

Lab Assignments, Paper Reading and Final Project:

• Lab Assignments focus on using EDA tools in the following levels

– schematic, layout, extraction and circuit simulation through labs.

• Paper Reading/Presentation and Final Project are completed in

groups of up to four students.

• Paper Reading/Presentation and Final Project topics might be

suggested by the student or assigned by the instructor. All will be

presented in class.

Bonus Questions Participation:

• Short, unannounced, in-class questions will be given.

Introduction to Analog Design

• Why should we need to study analog design?▫ Natural signals are analog

▫ Analog circuits are required to amplify and condition the signal for

further processing

▫ Performance of analog circuits often determine whether the chip

works or not

• Examples Sensors

RF transceivers

Microprocessor circuits (PLL, high-speed I/O, OTA)

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Example: Analog Circuits in Wireless Network

IDFT

P

to

S

CLOCK

DAC

DAC

Low

Pass

Low

Pass

33 MHz

text

cos( )IFt

sin( )IFt

Band

Pass

cos( )RFt

Band

Pass

Channel (Fiber Link/Wireless Connection)

Non-Linear

Power Amplifier

Band

Pass

Band

Pass

cos( )IFt

sin( )IFt

Low

Pass

Low

Pass

CLOCK

ADC

ADC

33 MHzS

to

PDFT

Low Noise

Amplifier

cos( )RFt

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What Things Would an Analog Engineer

Design?

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Video: Introduction to

Analog Design

Why Analog? Question: Is analog design more difficult than digital design?

Answer: ? Digital Design ▫ Large noise margin

▫ Trade-off between power and speed (and area) only

• Analog needs multi-dimensional trade-offs between ▫ Power, speed (frequency), gain, precision (drifts),

power supply voltage

• Analog circuits are more sensitive to “Noise and cross-talk”

• Modeling and simulation pose biggest challenge.

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An Analog designer is a Smart guy who uses Experience

and Intuition to use simulators.

Reference Maxim Note HFDN-27.0 (Rev. 0, 09/03)

Tx +

-

+

-

Rcvpath +

-

+

-

Clean, open, logical 1 & 0 at launch from transmitter

Smeared edges at end of long interconnect.

Logical 1 & 0 can be hard to distinguish at end of long interconnects; (this is often called a “closed eye”)

Fast, sharp, edges at transmitter launch

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High Speed Circuit Timing Analysis and

Design Optimization

Analog Designers are in Good Demand

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Analog Designers are in Good Demand

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Synthesis and Analysis Schematic Entry & Simulation

Layout DesignEvaluation and Testing

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Analysis vs Synthesis

Circuit

AnalysisProperties

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Analysis vs. Synthesis

PropertiesSynthesis

Circuit 1

Circuit 2

Circuit 3

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Design Process

for Analog

Integrated

Circuits

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Cadence Virtuoso

• Cadence's market share exceeds 80 percent in this area, according to market research firm Gartner Dataquest Inc.

• "We're expanding the Virtuoso [product] name to cover the whole platform for full custom, including simulation, capture, integration and silicon analysis," said Estrada.

- EETimeshttp://www.eetasia.com/ART_8800317637_480100_NP_b5ed79b5.HTM?jumpto=view_welcomead_1408937170685

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Cadence Virtuoso• Design, abstract and visualize the many interdependencies of an analog,

RF, or mixed-signal design to understand and determine their effects on circuit performance.

• Virtuoso Schematic Editor▫ Provides a complete design and constraint composition environment.

• Virtuoso Analog Design Environment▫ Provides a comprehensive array of capabilities for electrical and

statistical analysis, verification, and optimization.

• Virtuoso Layout Suite for Electrically Aware Design▫ Cadence® Virtuoso® Layout Suite enhances design team productivity

and circuit performance for custom ICs.

• Virtuoso Visualization and Analysis▫ A waveform display and analysis tool that efficiently and thoroughly

analyzes the performance.

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Video: Introduction to Virtuoso

Brief Introduction of the Instructor

• Ph.D. of ECE at Texas A&M University

• Research Intern, IBM

• Research Intern, Freescale Semiconductor Inc.

• Senior R&D Engineer, Intel Corporation

• Member of Technical Staff, Texas Instruments Inc.

• Assistant Professor, University of Kansas

Website：http://www.yangyi.ece.vt.edu/

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• Invited Talks at Industrial Companies:▫ IBM/IBM Research (TJ Watson, Austin)▫ Intel▫ Samsung▫ Qualcomm▫ Global Foundries▫ AMD▫ Freescale▫ Texas Instruments▫ Agilent▫ Nvidia▫ Synopsys

Brief Introduction of the Instructor

• Research Projects▫ Neuromorphic Electronic Circuits Design

and Automation for Brain-Inspired Computing System

▫ High Speed and Low-Power Circuit Design▫ Integrated Circuit Modeling , Simulation,

Design▫ Advanced CMOS Device Construction and

Process Integration

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Brief Introduction of the Instructor

http://www.yangyi.ece.vt.edu/

http://www.mics.ece.vt.edu/

Brief Introduction of Our Teaching Assistant

• Mr. Chenyuan Zhao

• Email: zcyg542@vt.edu

• Office: 477 Whittemore Hall

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How about you?

• Your name, major

• When you plan to graduate?

• What kind of job you plan to

apply after graduation?

• Why you take the course?

• What is your background in

electronic circuits (courses

& projects)?

• What do you want to learn

from this course?

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Before next class

• Next topic:

“Mommy and Daddy, what is CMOS Technology?”

• Reading assignment:

CMOS: Circuit Design, Layout, and Simulation

Chapter 1-6

Design of Analog CMOS Integrated Circuits

Chapter 1-2